Search results for "LS Upgrade Guide"

The LC8 engine is a 6.0L Gen. 4 small block engine used in GM trucks and SUVs between 2011 and 2019. It is unique among the Gen. 3 and Gen. […]

The L59 engine is a 5.3L Gen. III iron-block engine used in GM trucks and SUVs between 2002 and 2007. It is essentially the flex-fuel version of the LM7.  For […]

The LM4 is a 5.3L, Gen. 3 small block engine used in GM trucks between 2003 and 2005. It’s is very similar to the LM7, except that it’s built on an […]

The LR4 is a 4.8L iron block truck engine that was introduced in 1999. Along with the LM7 and LQ4, they were the first LS truck engines. The LR4 was available […]

Though the dozens of engines in the GM LS and LT families have many similarities, there are significant differences as well—and it’s important to know exactly what those are if […]

The L20 is a 4.8L Gen. IV iron block truck engine. It replaced the LY2 in 2010. It was upgraded with Variable Valve Timing (VVT) and Flex Fuel technology. It […]

The L98 is a 6.0L, Gen. 4, small block aluminum engine used in GM’s Australian Holden vehicles between 2006 and 2010. The L98 is a slightly modified version of the […]

The L76 is a 6.0L, Gen. 4, aluminum small block engine used in both GM cars and trucks from 2007 to 2009. This article is dedicated specifically to the truck and […]

The 5.7L LS1 is the original Gen. 3 small block engine from General Motors used in cars from 1997-2004. The LS1 engine specs and information here is for the stock […]

[Editor’s Note: This LMF engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. […]